[mrtg] Re: Cisco Switch

Roth, Gabrielle gabrielle.roth at xo.com
Thu Sep 5 19:27:56 MEST 2002

>I'd like to know if mrtg can monitor Switch Cisco devices...
>I am monitoring a few Cisco Routers and want to add monitoring in the
>switchs too....
>Does anybody monitors Cisco Switchs???

Under "Details":
"MRTG is not limited to monitoring traffic though, it is possible to monitor
any SNMP variable you choose. You can even use an external program to gather
the data which should be monitored via MRTG. People are using MRTG, to
monitor things such as System Load, Login Sessions, Modem availability and
more. MRTG even allows you to accumulate two or more data sources into a
single graph."


You are going to need to know the model #s and OS of the switches you want
to monitor to figure out which MIBs to use.

Assuming your switches are Cisco as well:
Pick your switch, find out which MIBs are supported, and go from there.

You will probably find a MIB Browser useful.  I would recommend that you
search the list archives for this (it was discussed recently).

On my switches, I monitor:
ifInOctets & ifOutOctets (default mrtg)
CPU (from CISCO-PROCESS-MIB [cat5500 & cat6500] and OLD-CISCO-CPU-MIB
SysTraffic (from the CISCO-STACK-MIB [cat5500 & cat 6500] and
CISCO-C2900-MIB [2900 series])
Temperature (from CISCO-ENTITY-SENSOR-MIB [cat6500])

There are lots of postings in the archive about how to set up mrtg to
monitor things exactly the way you want.  Check it out, dink around with it
a bit, and come back if you have more specific questions.


"I don't mind the rat race but I could do with a little more cheese."

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